Wheel dressing fixture

ABSTRACT

A grinding fixture for dressing a grinding machine wheel is disclosed herein. The fixture is provided with a circular collar which receives a circular end of the grinding wheel motor and clamp screws clamp the fixture in place on the motor. The fixture has a tool supporting bracket that is adjustable perpendicular to the axis of the rotation of the wheel on dovetail type ways and the tool is adjustable on the bracket by means of a bar rectangular in cross section which is fixed to the bracket. A washer is attached to the outer end of the bar to limit the outward movement of the bracket and felt disks are clamped in place on the tool support to wipe the bar clean of foreign matter.

United States Patent Weining [54] WHEEL DRESSING FIXTURE [72] Inventor:Andrew Weining, 1317 Lynn St.,

Erie, Pa. 16503 [221 P0611; Sept. 11,1970

21 Appl. No.2 71,602

52 U.S.Cl. ..125/1113 51 1111.01. ..B24b 53/04 581 FieldofSearch..125/11 [56] References Cited UNITED STATES PATENTS 1,596,701 8/1926Williams ..-..125/11B 2,175,514 10/1939 Buchanan ..l25/llB 1,635,4637/1927 Davis ..125/11B 1,434,130 10/1922 Lloyd ..l25/llB 1,357,81411/1920 Olson .1 ..125/11B 1 Aug. 8, 1972 I Primary Ex'aminerHarold D.Whitehead I Attorney-Charles L. Lovercheck ABSTRACT A grinding fixturefor dressing a grinding machine wheel is disclosed herein. The fixtureis provided with a circular collar which receives a circular end of thegrinding wheel motor and clamp screws clamp the fixture in place on themotor. The fixture has a tool supporting bracket that is adjustableperpendicular to the axis of the rotation of the wheel on dovetail typeways and the tool is adjustable on the bracket by means of a barrectangular in cross section which is fixed to the bracket. A washerisattached to the outer end of the bar to limit the outward movement ofthe bracket and felt disks are clamped in place on the tool support towipe the bar clean of foreign matter.

2 Claims, 5 Drawing Figures PATENTEHAUB 8 1972 3.682.153

sum 1 OF 2 ANDREW WEINING 1O 19 3 M 4%4 4 a PATENTED AUS 8 I972 SHEET 2OF 2 ANDREW WElNING WHEEL DRESSING FIXTURE STATEMENT OF INVENTION Thisinvention relates to grinding machines and, more particularly, todressing fixtures for grinding machines.

STATEMENT OF PRIOR ART,

This patent application is an improvement over US. Pat. No. 3,028,853.

OBJECTS OF THE INVENTION.

It is an object of the invention to provide an improved grinding machinefixture.

Another object of the invention is to provide an improved grindingmachine wheel dressing fixture.

Another object of the invention is to provide an improved grindingmachine fixture which is simple in construction, economical tomanufacture, and simple and efficient to use.

With the above and other objects in view, the present invention consistsof the combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawings and moreparticularly pointed out in the appended claims, it being understoodthat changes may be made in the form, size, proportions, and minordetails of construction without departing from the spirit or sacrificingany of the advantages of the invention.

GENERAL DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the fixtureaccording to the invention shown supported on the grinding machine.

FIG. 2 is an end view of the fixture shown in FIG. 1.

FIG. 3 is a view similar to FIG. 1 of another embodiment of theinvention.

FIG. 4 is a side view of the fixture shown in FIG-3.

FIG. 5 is a top view of part of the fixture shown in FIG. 4.

FIG. 6 is an end view of part of the fixture shown in FIG. 5.

DETAILED DESCRIPTION OF THE DRAWINGS Now with more particular referenceto the drawings, in the embodiment of the invention shown in FIGS. 1 and2, the wheel dresser 11 is shown supported on a grinding machine 10. Thegrinding machine has a wheel 30 supported on a shaft; The outer end ofthe grinding machine at 19 is circular and receives the collar 13 whichmay be clamped in place by means of the set screws 31. The collar hasways 15 fixed to it and these ways slidably receive the dressing toolsupport bracket 20. The bracket threadably receives the threaded shaft18 which has a hand wheel 17 on its upper end. Thus the bracket 20 willslide up and down on the ways 18. The non-circular rod 21 which isactually square in cross section in the preferred embodiment supportsthe tool support 29. The tool support 29 has the dressing tool 16 fixedto it which may have a diamond point. The bracket 33 is fixed to thesleeve 13 by means of screw 14. A washer 22 limits the outward slidingmovement of the tool support 29 and the screw 23 holds the washer 22 inplace. The tool support 29 has the plates 26 affixed to its side byscrews and the felt 34 is clamped under plates 26 and this felt wipesforeign material from the support way 21. The support ways may betightened so that the slot 36 closes by means of the screw 37.

In the embodiment of the invention shown in FIGS. 3, 4 and 5, a fixturemuch like that shown in FIGS. 1

and 2, is shown and corresponding parts have 100 added thereto toindicate the corresponding parts in FIGS. 1 and 2. The sleeve 113 isshown having the set screws 131 which may clamp it in place to a grinderas in FIG. 1. The bracket 112is fixed to the sleeve and ways 115 arefixed to the bracket. The tool support 120 slides up and down on theways and it has a non-circu- The slot in link 141 acts as a secondadjustment means to move the tool 116 in a direction parallel to theaxis of rotation of the wheel. The screw 118 acts as a third adjustmentmeans to move the tool in a direction perpendicular to the axis ofrotation of the wheel. The ways 120 receive the dovetail and slide upand down on it, moved by the threaded screw 118 having hand wheel 117.The dressing tool 116 is supported in the tool support 129 in the samemanner as in FIG. 2. Thus the tool may be adjusted in a third directionat an angle to the axis 141 of the grinding wheel at an angle to theaxis of rotation. The cutting tool 1 16 may be adjusted parallel to theaxis and perpendicular to the axis 141, as in the other embodiment.

The foregoing specification sets forth the invention in its preferredpractical forms but the structure shown is capable of modificationwithin a range of equivalents without departing from the invention whichis to be understood is broadly novel as is commensurate with theappended claims.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as follows:

l. A fixture for a grinding machine having a spindle housing,

a bearing carried by said housing rotatably supporting a spindle towhich a grinding wheel is secured, said fixture comprising,

in combination, a bracket for attachment directly to and concentricallyaround said spindle housing,

a dressing tool for said grinding wheel,

a first adjustment means for changing the position of said dressing toolin a plane passing through the axis of rotation of said grinding wheeland at an acute angle to the axis of rotation of said wheel,

and a second adjustment means for changing the position of said dressingtool in a direction parallel to the axis of said grinding wheel,

and a third adjustmentmeans for changing the position of said dressingtool in a direction perpendicular to the axis of said grinding wheel,

said means for changing the position of said dressing tool parallelto'the axis of said grinding wheel comprising a non-circular bar fixedto said fixture and 3 4 a tool supporting member slidably received onsaid said dressing tool to said wheel comprises, noncircula-r a linkpivotally supported on said first adjustment stop means on the ends ofsaid bar limiting the outward movement of said tool on said bar. 2. Thefixture recited in claim 1 wherein a fourth ad- 5 justment means forchanging the angular position of means at one end, the other end of saidlink being pivotally attached to said non-circular type bar.

1. A fixture for a grinding machine having a spindle housing, a bearingcarried by said housing rotatably supporting a spindle to which agrinding wheel is secured, said fixture comprising, in combination, abracket for attachment directly to and concentrically around saidspindle housing, a dressing tool for said grinding wheel, a firstadjustment means for changing the position of said dressing tool in aplane passing through the axis of rotation of said grinding wheel and atan acute angle to the axis of rotation of said wheel, and a secondadjustment means for changing the position of said dressing tool in adirection parallel to the axis of said grinding wheel, and a thirdadjustment means for changing the position of said dressing tool in adirection perpendicular to the axis of said grinding wheel, said meansfor changing the position of said dressing tool parallel to the axis ofsaid grinding wheel comprising a noncircular bar fixed to said fixtureand a tool supporting member slidably received on said non-circular bar,stop means on the ends of said bar limiting the outward movement of saidtool on said bar.
 2. The fixture recited in claim 1 wherein a fourthadjustment means for changing the angular position of said dressing toolto said wheel comprises, a link pivotally supported on said firstadjustment means at one end, the other end of said link being pivotallyattached to said non-circular type bar.